Someone just sent me a picture of this super old Japanese textbook and I love it

Tag yourself I'm "bynebai"

Some of the phrases we've deciphered so far:

Mar = うま

Watarkshee = わたくし

Champone = ちゃんぽん

Sigh oh narrow = さようなら

Nigh = ない

Ooso = うそ

Moods cashey = むずかしい

Todie-mar = ただいま

Edit: am buy worry = あんばい　わるい

Edit 2: Someone has found the source!